Tracheal tube



FIG. 1 is a front perspective view of the tracheal tube;

FIG. 2 is a bottom perspective view of the tracheal tube;

FIG. 3 is a back perspective view of the tracheal tube;

FIG. 4 is a front view of the tracheal tube;

FIG. 5 is a side view of the tracheal tube; and,

FIG. 6 is a top view of the tracheal tube. 

CLAIM The ornamental design for a tracheal tube, as shown and described. 